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  1. IMPALA
  2. IMPALA-3838

Codegen HdfsParquetScanner::EvalRuntimeFilters()

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: Impala 2.7.0
    • Fix Version/s: None
    • Component/s: Backend
    • Labels:

      Description

      There is a virtual function call

       filter_ctxs_[i]->expr->GetValue(row) 

      and a big switch statement in RawValue::GetHashValue() (called by RuntimeFilter::Eval). It's called for every row so we may benefit from codegen'ing.

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              • Assignee:
                kwho Michael Ho
                Reporter:
                kwho Michael Ho
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                • Created:
                  Updated:
                  Resolved: